Arrma Granite BLX 4600mAh NiMH 8.4V Vehicle FEATURES: Chassis: Twin vertical aluminum plate with double chassis rails and alloy front chassis plate, batteries fit under chassis-no need to remove INCLUDES: RTR Granite Monster Truck with Blue Body and 2.4GHz Radio, ESC, Steering Servo, Brushless Motor, Tires, Wheels, Foam Inserts, Battery, Decal REQUIRES: AA Batteries: Four for transmitter Building and track equipment